While many famous faces have declared themselves fans of Twitter, David Cameron is clearly not as enamoured.

The Conservative leader has apologised for his use of bad language during a radio interview this week in which he expressed his views on the social networking website.

"The trouble with Twitter, the instantness of it – too many twits might make a t**t," he told laughing radio host Christian O'Connell. 

Moments later, the 42-year-old sparked further controversy when he spoke about the expenses scandal. "The public are rightly, I think, p****d off."

He immediately apologised, saying: "Sorry I can't say that in the morning – angry with politicians."

While his aides have pointed out his first faux-pas is not recognised as a swear word under radio guidelines, he has nevertheless said sorry.

"You always have to be careful what you say," he later told Sky News. "If I've caused any offence I obviously regret that."

Photo: � PA